Struct LayoutDom

pub struct LayoutDom { /* private fields */ }

Contains information on how each widget in the DOM is laid out and what events they’re interested in.

Implementations

impl LayoutDom

pub fn new() -> Self

Create an empty LayoutDom.

pub fn get(&self, id: WidgetId) -> Option<&LayoutDomNode>

Get a widget’s layout information.

pub fn get_mut(&mut self, id: WidgetId) -> Option<&mut LayoutDomNode>

Get a mutable reference to a widget’s layout information.

pub fn set_unscaled_viewport(&mut self, view: Rect)

Set the viewport of the DOM in unscaled units.

pub fn set_scale_factor(&mut self, scale: f32)

Set the scale factor to use for layout.

pub fn scale_factor(&self) -> f32

Get the currently active scale factor.

pub fn viewport(&self) -> Rect

Get the viewport in scaled units.

pub fn unscaled_viewport(&self) -> Rect

Get the viewport in unscaled units.

pub fn len(&self) -> usize

Tells how many nodes are currently in the LayoutDom.

pub fn is_empty(&self) -> bool

Tells whether the LayoutDom is currently empty.

pub fn calculate_all(&mut self, dom: &Dom, input: &InputState)

Calculate the layout of all elements in the given DOM.

pub fn calculate( &mut self, dom: &Dom, input: &InputState, id: WidgetId, constraints: Constraints, ) -> Vec2

Calculate the layout of a specific widget.

This function must only be called from Widget::layout and should only be called once per widget per layout pass.

pub fn enable_clipping(&mut self, dom: &Dom)

Enables clipping for the currently active widget.

pub fn new_layer(&mut self, dom: &Dom)

Put this widget and its children into a new layer.

pub fn set_pos(&mut self, id: WidgetId, pos: Vec2)

Set the position of a widget.

Trait Implementations

impl Debug for LayoutDom

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.